Dependency Injection With Test Driven Development

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With unit tests you can check that your code behaviours just as you expect it to. When writing your unit tests you shouldn't need to worry about if any other area of the application is working correctly. The benefits of unit testing are: Decouples your code Write more modular classes Functions are smaller and more focused Your functions are more defensive Quality of code becomes higher You will find it easier to reuse code. When writing unit tests you just need to test this one method of your application, if your method relies on another class/variable there should be a way you can inject this into the method. This is where dependency injection in your code comes in handy, it will allow you to inject objects into your classes to change the output of the class. There are a few things you need to do to make a method unit...

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